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To upgrade your ATK, you need to spend your current ATK value in COINS.
4 Coins, ATK 2 — enough to upgrade.
1 Coin, ATK 2 — not enough yet.
To upgrade your ATK, you need to spend your current ATK value in COINS.
4 Coins, ATK 2 — enough to upgrade.
1 Coin, ATK 2 — not enough yet.